Thanks to the readers who have added very useful comments and links below my “How little we learn” post. There’s more to come (including some recently published books on the topic), but this cartoon below from xkcd was in my googlereader and I couldn’t help but post it. Once you’ve read it, go watch Tom Lehrer singing about it all “vonce the rockets are up, who cares vere zey come down, zat’s not my department…”